Screw Extractor Set Extractor Type Screw Extractor Number of Pieces 4 Drill Size 9/32 in 23/64 in 31/64 in 39/64 in For Screw Type Button Head Socket Cap Flat Head Socket Cap Pan Head Screws Round Head Bolts Phillips Posidriv Robertson Torx Tri-Wing Socket Socket Head Cap Socket Set Screw For Bolt Size 1/2 in 1/4 in 3/8 in 5 in 6 in 7 in Material - Machining Carbon Steel Overall Length 3-3/8 in 3-3/4 in 4-1/8 in Container Type Pouch